UI: Rename 'obs' dir to 'UI'

This is to prevent confusion both when prefixing commits and when
reading the directory structure for the first time.

UI/window-basic-interaction.hpp

@@ -0,0 +1,88 @@
+/******************************************************************************
+    Copyright (C) 2014 by Hugh Bailey <obs.jim@gmail.com>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+******************************************************************************/
+
+#pragma once
+
+#include <QDialog>
+#include <memory>
+#include <functional>
+
+#include <obs.hpp>
+
+#include "properties-view.hpp"
+
+class OBSBasic;
+
+#include "ui_OBSBasicInteraction.h"
+
+class OBSEventFilter;
+
+class OBSBasicInteraction : public QDialog {
+	Q_OBJECT
+
+private:
+	OBSBasic   *main;
+
+	std::unique_ptr<Ui::OBSBasicInteraction> ui;
+	OBSSource  source;
+	OBSSignal  removedSignal;
+	OBSSignal  renamedSignal;
+	std::unique_ptr<OBSEventFilter> eventFilter;
+
+	static void SourceRemoved(void *data, calldata_t *params);
+	static void SourceRenamed(void *data, calldata_t *params);
+	static void DrawPreview(void *data, uint32_t cx, uint32_t cy);
+
+	bool GetSourceRelativeXY(int mouseX, int mouseY, int &x, int &y);
+
+	bool HandleMouseClickEvent(QMouseEvent *event);
+	bool HandleMouseMoveEvent(QMouseEvent *event);
+	bool HandleMouseWheelEvent(QWheelEvent *event);
+	bool HandleFocusEvent(QFocusEvent *event);
+	bool HandleKeyEvent(QKeyEvent *event);
+
+	OBSEventFilter *BuildEventFilter();
+
+public:
+	OBSBasicInteraction(QWidget *parent, OBSSource source_);
+	~OBSBasicInteraction();
+
+	void Init();
+
+protected:
+	virtual void closeEvent(QCloseEvent *event) override;
+};
+
+typedef std::function<bool(QObject *, QEvent *)> EventFilterFunc;
+
+class OBSEventFilter : public QObject
+{
+	Q_OBJECT
+public:
+	OBSEventFilter(EventFilterFunc filter_)
+		: filter(filter_)
+	{}
+
+protected:
+	bool eventFilter(QObject *obj, QEvent *event)
+	{
+		return filter(obj, event);
+	}
+
+private:
+	EventFilterFunc filter;
+};